99037391
99037391 99037391
  • 13-06-2020
  • Mathematics
contestada

find the area of this triangle. round to the nearest tenth

find the area of this triangle round to the nearest tenth class=

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wolf1728
wolf1728 wolf1728
  • 13-06-2020

Answer:

2nd leg^2 = 17^2 + 15^2

2nd leg^2 = 64

2nd leg = 8

a = 17  b = 15  c = 8

We use heron's formula to find area when we know 3 sides.

We first must calculate the semi-perimeter:

semi-perimeter = 17 + 15 + 8 / 2  = 20

area = square root  [s * (s -a) * ( s-b) * (s-c)]

area = sq root [20 * 3 * 5 * 12]

area = sq root [3,600]

area = 60 square meters

Step-by-step explanation:

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taextra
taextra taextra
  • 03-03-2021

Answer:

73.1

Step-by-step explanation:

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